A pacific storm and an arctic cold front clashed over northeast Montana on December 29th to bring heavy snow to much of the area that continued into the night. North winds and and an arctic airmass on the backside of the system brought blizzard conditions in some places and dangerous windchills late on the 29th that lasted into the 30th.

Event Narrative

On December 29th, winds at the Lindsay Divide DOT sensor and the Glendive Airport AWOS reported sustained winds over 20 mph with gusts over 30 mph most of the day combined with falling snow. At 1900 MST on December 30th, spotter 2 miles west of Glendive reported 3 inch storm total. At 1700 MST on December 30th, spotter 16 miles west-southwest of Glendive measured a 2 inch storm total.